نتایج جستجو برای: rc sealers
تعداد نتایج: 14450 فیلتر نتایج به سال:
Gentamicin (GM) is an antibiotic widely used against gram-negative infections. However, its clinical application is limited due to its nephrotoxicity. Oxidative stress plays an important role in the nephrotoxicity of gentamicin. Previous studies showed that Rosa canina L. (RC) fruits possess antioxidant, antimutagenic and anticarcinogenic effect. The aim of this study was to investigate the pro...
Rhizoma coptidis (RC) has been used as an herbal medicine in China for over one thousand years, and it was subjected to specific processing before use as materia medica. Processing is a pharmaceutical technique that aims to enhance the efficacy and/or reduce the toxicity of crude drugs according to traditional Chinese medicine theory. In this study, the chemical profiles of RC, ginger juice pro...
In this paper, we focus on the synthetic understanding of documents, specifically reading comprehension (RC). A current problem with RC is the need for a method of analyzing the RC system performance to realize further development. We propose a methodology for examining RC systems from multiple viewpoints. Our methodology consists of three steps: define a set of basic skills used for RC, manual...
Reading comprehension (RC) and critical thinking (CT) are the two basic cognitive skills that should be developed through involving language learners in a carefully planned instruction. Multiple intelligences (MI) instruction may assist learners in developing RC and CT in L2 education. This study probed the effect of MI-based reading instruction on the Iranian EFL learners’ RC and CT skills. In...
تمایل و اندیشه استفاده از ترکیبات شیمیایی جهت رفع موانع انسدادی عاج دیواره کانال از دیرباز وجود داشته و در حال حاضر نیز تحقیقات و تلاشها در این زمینه بی نتیجه نبوده است؛ دراین رابطه rc-prep بهتر از بقیه مواد، دندانپزشکان را یاری نموده است. هدف از این مطالعه بررسی میزان قدرت دکلسیفیکاسیون دو نوع ماده chelating در مرحله آماده سازی کانال می باشد. در این مطالعه از 40 دندان کانین کشیده شده، استفاده ...
INTRODUCTION This study aimed to evaluate the dentine-sealer interface in three different sealers using scanning electron microscopy (SEM). METHODS AND MATERIALS Thirty extracted human single-rooted teeth were prepared using ProTaper rotary files and were randomly divided into three groups (n=10) including BC Sealer, AH-Plus and Dorifill. The root canals were filled with cold lateral condensa...
BACKGROUND The purpose of this study was to compare the sealing ability of MTA Fillapex, Apatite Root Canal Sealer and AH26 sealers. MATERIAL AND METHODS The present in vitro study was carried out on 142 extracted single-rooted human mature teeth. The teeth were randomly divided into three experimental groups (n=44) and two control groups (n=5). Three root canal sealers were MTA Fillapex, Apa...
Background. Further studies on the adhesion properties of MTA-based materials seem necessary due to their growing use in endodontic treatment. This research aimed to assess the effect of retreatment on the bond strength of MTA-based (MTA Fillapex) and epoxy resin-based (AH Plus) sealers. Methods. ProTaper rotary files were applied to prepare the root canals of 80 human mandibular premolars. The...
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